208 ANIMAL AMIDES. 



was obtained by boiling pure hartshorn in water for two hours, 

 washing the jelly with alcohol, and then with water. In this 

 state, it left 5*406 per cent, of ashes; doubtless consisting of 

 phosphate of lime, which it is well known collin has the property 

 of dissolving. This specimen being subjected to analysis, was 

 found (abstracting the ashes) to be composed of, 



Carbon, . 50-048 



Hydrogen, 6-560 



Azote, . 18-369 



Oxygen, . 25 023 



100-000 



The second specimen of collin analyzed by Mulder was ob- 

 tained by boiling very pure isinglass for half an hour in water, 

 evaporating the solution by the water-bath, washing it with alco- 

 hol, and then drying it by a steam-heat. It contained 0-64 per 

 cent of ashes ; doubtless phosphate of lime. Its constituents 

 were, 



Carbon, . 50757 



Hydrogen, . 6-644 



Azote, 18-313 



Oxygen, . 24-286 



100-000 



A specimen carefully prepared from isinglass was analyzed in 

 Liebig's laboratory by Dr Scherer.* He obtained, 

 Carbon, . 50-557 

 Hydrogen, . 6-903 



Azote, . 18-790 



Oxygen, . 23-750 



100-000 

 Four other analyses gave as a mean, 



Carbon, . 50-573 

 Hydrogen, . 7-141 

 Azote, L ,>;$ 18-458 

 Oxygen, . 23-528 



100- 



* Ann. der Pharm. xl 46. 



